Isotonic solution

An isotonic solution has the same concentration of dissolved particles as the fluid inside your body's cells. When used in medical settings, such as IV fluids, it helps maintain your body's fluid balance without causing cells to swell or shrink. This balance is important for proper cell function and overall hydration. Think of it as a "match" fluid that keeps everything in equilibrium, making it ideal for replacing lost fluids or providing hydration without disrupting normal cell activity. Common examples include normal saline (saltwater) and lactated Ringer's solution.